Ale to odniesienie musi byc uziemieniem zwyklym lub sztucznym.
Nie ma mojej teorii. W Wiki pisze tak: "Where a real ground connection has a significant resistance, the approximation of zero potential is no longer valid. Stray voltages or earth potential rise effects will occur, which may create noise in signals or if large enough will produce an electric shock hazard."
Marconi opisal jak zrobic sztuczne uziemienie: "In 1909 Marconi wrote:
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"By "connected to earth" I do not necessarily mean an ordinary metallic connection as used for ordinary wire telegraphs. The earth wire may have a condenser in series with it, or it may be connected to what is really equivalent, a capacity area placed close to the surface of the ground (Fig. 4). It is now perfectly well known that a condenser, if large enough, does not prevent the passage of high frequency oscillations, and therefore in these cases the earth is for all practical purposes connected to the antennae."
To te uloty i uplywnosci z duzych powierzchni daja polaczenie z ziemia. S*